<template>

	<view class="charts-box">
		<qiun-data-charts type="pie" :canvas2d="true" :canvasId="canvasId_data" :opts="opts" :chartData="chartData" />
	
	</view>
	
</template>

<script>
	export default {
		data() {
			return {
				chartData: {},
				//您可以通过修改 config-ucharts.js 文件中下标为 ['pie'] 的节点来配置全局默认参数，如都是默认参数，此处可以不传 opts 。实际应用过程中 opts 只需传入与全局默认参数中不一致的【某一个属性】即可实现同类型的图表显示不同的样式，达到页面简洁的需求。
				opts: {
					color: ["#0de3ee", "#eb6bfc", "#a0a2fb", "#3497fd"],
					padding: [5, 5, 5, 10],
					enableScroll: false,
					dataLabel: true,
						update: true,
					legend: {
						show: true,
						position: "bottom",
						lineHeight: 25
					},
					extra: {
						pie: {
							activeOpacity: 0.5,
							activeRadius: 10,
							offsetAngle: 0,
							labelWidth: 10,
							border: true,
							borderWidth: 3,
							borderColor: "#FFFFFF"
						}
					}
				}
			};
		},
		props: ['educationInfo'],
		watch:{
		   educationInfo: {
		     handler(newValue, oldValue) {
		       if (newValue) {
		         this.educationInfo = newValue
		         this.$nextTick(() => {
		           this.getServerData();
		         });
		       }
		     },
		     immediate: true,
		     deep: true
		   }
		 },
		
		onReady() {
			this.getServerData();
		
		},
		methods: {
			getServerData() {
				//模拟从服务器获取数据时的延时
				setTimeout(() => {
					//模拟服务器返回数据，如果数据格式和标准格式不同，需自行按下面的格式拼接
					let res = {
						series: [{
							data: this.educationInfo
						}]
					};
					this.chartData = JSON.parse(JSON.stringify(res));
				}, 500);
			},
		}
	};
</script>

<style scoped>
	/* 请根据实际需求修改父元素尺寸，组件自动识别宽高 */
	.charts-box {
		width: 100%;
		height: 210px;
		margin-top: 10px;
		/* margin-top: -20px;
		margin-left: 20px */
	}
</style>
